I have an interesting issue.  I have some software that I wrote on a Vista machine using VS2008 in VB.NET.  The software works fine on Vista machines but won't even start on a XP machine.  It just says an error was encountered and must close.  Seeing as how XP is now 2 generations past, I was thinking of going to a W7 machine.  What's the general consensus there?  IS W7 working OK with Mach?  I did read some issues with 64 bit, so I would stick with 32 bit.  Thanks.

I am running Win7 on my laptop to do development work and just switched my mill over too.
I am running on what many would consider a substandard computer for win 7 (512mb ram) but it is working well.
I am running an external motion controller so I can't speak to the PPort use.